Locking device for valves for gas burners



May 11 1926. 1,584,606

1'' E. C. BUNTING LOCKING DEVICE FOR VALVES FOR GAS BURNERS Filed Nov.28, 1924 2 Sheets-Sheet 1 May 11,1926. 1,584,606

E. C. BUNTING LOCKING DEVICE FOR VALVES FOR GAS BURNERS Filed Nov. 28,1924 2 Sheets-Sheet 2 Patented May 11, 1926.

ELWOOD C. B'UNTING, OF PHILADELPHIA, PENNSYLVANIA, ASSEG-NOR T0 ROBERTS55 v MANDEB STOVE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATIONOF PENNSYLVANIA.

LOCKING DEVICE FOR VALVES FOR GAS BURNERS.

Application filed November 23, 1924:.

This invention relates particularly to gas ranges, in which there aretwo burners in the oven. One burner is in the upper poi? tion of theoven for broiling and the other burner is in the lower portion of theoven for baking.

The object of the invention is to provide means for locking one burnerin the closed position when the other burner is open. The lockingmechanism is so designed that when both burners are closed, eitherburner can be opened.

In the accompanying drawings:

v F 1 is a side view showing two burners of a gas range and the casingof an oven in section, and illustrating my improved look ing mechanism;

Fig. 2 is an end view;

Fig. 3 is a view of one end of the locking device;

Fig. 1 is a perspective view of one of the heads of the locking device;and

Fig. 5 is a view of the handle of one oi the gas cocks.

The casing 1 of an oven of a gas range can be of any form desired.Located in the oven are two burners. One burner 2 is located in theupper portion of the oven and is used for broiling. The other burner 3is in the lower portion of the oven and is used for baking. The burner 2has a mixing chamber 1, which is provided with an air intake regulatorof the ordinary type. EX- tending into the mixing chamber is a gasnozzle 5, projecting from a gas cook 6 that is attached to the gassupply pipe 7. In the gas cook 6 is a valve 8 that has a handle 9. Onthis handle is a lug 10 that actuates the locking device 11;

The burner 3 has a mixing chamber 12. An air intake regulator of theordinary type is provided for this burner. Extending into the mixingchamber is a nozzle 13 of a gas cock 14, which is connected to the gassupply pipe 7. This cock has a valve 15, provided with a handle 16having a lug 17. The two valvestructures are similar in design.

The locking device 11 consists of a rod 18 that has a head 19 at eachend. Each head has a bearing face 19 with which the lug on the handle ofthe valve engages to move the locking device longitudinally to look avalve. The movement 01": the lug is stopped Serial No. '252/7'Y5.

by a projection 2 t that forms a continuation of a stop El: for lockingthe handle of a valve in the closed position. Each head has two fingers20 and 21, which are spaced apart to term a form that spans the reducedshank 22 of the valve. ()n the finger 20 is a projection .5, againstwhich the lug on the valve strikes to move the locking device to neutralposition with the valves closed. The rod can be or" any length desired,depending upon the distance apart of the burners.

The device can be attached to any burner, as it engages only the shanksof the valves and is not attached to the main structure 01 the range.

The operation is as follows As shown in Figs. 1 and S, the gas valve, asit is turned on, raises the locking device as the lug 17 on the gasvalve sweeps against the surface 1S) of the lower head 19, moving thelocking device to the position shown in Fig. 1, with the valve on. Thismovement of the locking device brings the stop 9A of the upper head 19into the path 01 the handle 9, which is in the oft position, locking thehandle from moving in the direction of its arrow, Fig. 1, to the on position. On closing the lower valve, the lug 17 strikes the projection 23on one of the fingers of the head, retracting the locking device to theneutral position to allow e ther valve to be moved to the on position.

hen the upper valve is moved, it actuates the locking device, whichengages the lower valve and holds it locked while the upper valve isopen.

This device is simple and can be readily attached to burners inposition, preventing the opening of one valve when the'other valve isopen.

I claim:

1. The combination in a locking device for the valves of gas burners, oftwo burners having gas-cocks with valves provided with handles, each ofsaid handles having a laterally extending lug; and a locking devicehaving a forked head at each end to span the valve-stems, each headbeing shaped to be actuated by the lug on the handle of a valve to movethe locking device to lock the valve at the opposite end of said device,each head having a stop which is engaged by the handle to lock the valvein the closed position.

2. The combination in a gas range, of two gas-cocks spaced apart forcontrolling the gas admitted to the oven the range, each cock having ahandled valve, each handle having :1 lug; a len itndinnlly movable1001:- ing device for the valves, said locking device consisting of twohead and n 190d, said heads being detachably secured to the rod, eachhead being forked; :1 stop on one for]; arranged to be engaged by thelug on the handle; and means on each head for 10thing its handle in theclosed pnsitiun.

